Thermo Fisher Scientific Inc.
MX ˙ BMV ˙ US8835561023
SecurityMX:TMO / Thermo Fisher Scientific Inc.
InstitutionIronvine Capital Partners, LLC
Latest Disclosed Ownership64,085 shares
Latest Disclosed Value $ 31,499,700
Ironvine Capital Partners, LLC reports 0.70% decrease in ownership of TMO / Thermo Fisher Scientific Inc.

On May 15, 2026 - Ironvine Capital Partners, LLC filed a 13F-HR form disclosing ownership of 64,085 shares of Thermo Fisher Scientific Inc. (MX:TMO) valued at $31,499,700 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 64,538 shares of Thermo Fisher Scientific Inc.. This represents a change in shares of -0.70% during the quarter.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 64,085 -453 -0.70 31,500 -15.77 3.4624
2026-02-13 2025-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 64,538 -21 -0.03 37,397 19.43 3.7435
2025-11-14 2025-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 64,559 -8,485 -11.62 31,312 5.73 3.1169
2025-08-14 2025-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 73,044 -3,933 -5.11 29,616 -22.68 3.0690
2025-05-15 2025-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 76,977 4,188 5.75 38,304 1.15 4.1584
2025-02-14 2024-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 72,789 -4,916 -6.33 37,867 -21.22 4.0574
2024-11-14 2024-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 77,705 205 0.26 48,066 12.15 5.1601
2024-08-14 2024-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 77,500 -29 -0.04 42,858 -4.89 4.6941
2024-05-15 2024-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 77,529 285 0.37 45,061 9.90 4.9412
2024-02-14 2023-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 77,244 -3,156 -3.93 41,000 0.75 4.9171
2023-11-14 2023-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 80,400 830 1.04 40,696 -1.97 5.2216
2023-08-14 2023-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 79,570 -726 -0.90 41,516 -10.30 5.0409
2023-05-15 2023-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 80,296 225 0.28 46,280 4.96 5.8383
2023-02-14 2022-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 80,071 4,019 5.28 44,094 14.31 5.7081
2022-11-14 2022-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 76,052 3,088 4.23 38,573 -2.69 5.1763
2022-08-15 2022-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 72,964 1,124 1.56 39,640 -6.58 4.8654
2022-05-16 2022-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 71,840 1,661 2.37 42,432 -9.38 4.5763
2022-02-14 2021-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 70,179 -10,096 -12.58 46,826 2.10 4.8045
2021-11-15 2021-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 80,275 2,574 3.31 45,864 17.01 4.8704
2021-08-16 2021-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 77,701 23,255 42.71 39,198 57.75 4.2934
2021-04-29 2021-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 54,446 792 1.48 24,848 -0.57 2.8921
2021-02-02 2020-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 53,654 -7,160 -11.77 24,991 -6.93 3.1211
2020-11-03 2020-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 60,814 18 0.03 26,851 21.89 3.3640
2020-08-05 2020-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 60,796 44 0.07 22,029 27.86 2.9148
2020-04-29 2020-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 60,752 8,871 17.10 17,229 2.22 2.6928
2020-01-23 2019-12-31 13F/A-1 THERMO FISHER SCIENTIFIC COM 883556102 51,881 859 1.68 16,855 16.51 2.3522
2019-10-24 2019-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 51,022 4,950 10.74 14,467 8.90 2.1230
2019-07-26 2019-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 46,072 2,854 6.60 13,285 12.30 2.1705
2019-05-08 2019-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 43,218 43,218 11,830 2.2342
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.